Asymmetrical Federalism- we already have it. Jean Charest compared it to the status of France in Europe.
http://www.vigile.net/Charest-says-Quebec-equal-to

"Charest told Express magazine, a weekly newsmagazine in France during his visit to Paris in July, that asymmetrical federalism in Canada gives Quebec a unique political status in the country apart from the other provinces and that his government is able to express itself ’’without inhibition’’ on the world stage.

’’There is no doubt that we are a people and a nation. And I see no contradiction in the fact that we, Quebecers, are also Canadian, like the French are French, but also European,’’ said Charest, pointing out that Quebec federalists are just as aggressive as separatists when it comes to defending Quebec’s identity."